Finding the Fourth Proportional to 1,600,978.38, 2,209,367.61 and 875,810.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,600,978.38 : 2,209,367.61 = 875,810.53 : x
2. Step 2: Convert to fraction form
   1,600,978.38/2,209,367.61 = 875,810.53/x
3. Step 3: Cross multiply
   1,600,978.38x = 2,209,367.61 × 875,810.53
4. Step 4: Simplify right side
   1,600,978.38x = 1,934,987,417,478.93
5. Step 5: Solve for x
   x = 1,934,987,417,478.93/1,600,978.38
6. Step 6: Final answer
   x = 1,208,628.07